Wrench.



S. TAKACS.

WRENCH.

APPLIOATIONIILED 1330.18, 1911.

1,042,053. Patented 0032219112.

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. the movable aw body UNITED STATES PATEN onrion.

STEVE TAKACS, NEWKBK, OHIO.

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' Specification of Letters Patent. Application ales December 18, 1911.Serial no. seams.

' Patented oat. 22,1912.

jects of my invention are to provide an improved construction of wrenchof this class in which means are provided for producing a feedengagement of the sliding jaw body with the main bar of the wrench andby which the engaging and feeding member of gaged from the main bar ofthe wrench and the movable jaw body permitted to slide withoutinterference upon said wrench bar; to so construct my device as to admitof the feeding member of the sliding jaw being automatically held out ofor in engagement with the teeth of the wrench bar to soconstruct the jawmembers of my improved wrench so as to facilitate the engaging of ahexagonal orsquared body, thus providing for the engagement of nuts (ifdifferent forms and to otherwise produce a simple, inexpensive andreliable 'form of wrench. These objects I accomplish in the mannerillustrated in the accompanying drawings, in which- Figure 1 is a sideelevation of my improved wrench, Fig. 2 is a view at right anglesto-that shown in Fig. 1, showing the feed device disengaged from theteeth of the wrench bar, Fi 3 is a transverse section on line az-w 0Fig. 1, and Fig. 4 is a similar section on line g -y of Fig. 2.

Similar numerals refer to-similar part throughout the several views.

In carrying out my invention, I employ a straight wrench body 1 which issubstantially of T-form in cross section and which has its inwardlyprojecting and reduced member 1* formed with parallel teeth 1". At oneend, the bar 1 carries a suitable handleextension 2 and at its oppositeend is formed with a fixed transverse jaw or head 3 which is of greaterthickness than the body of the bar 1. The outer end portion of themember 1 of the bar 1 is somewhat increased in width as indicated at i,this wider head portion 1 extending centrally into a socket 3 of the jawor head 3, the,

may be readily disenouter end of the widened portion 1 of the member .1thus forming a partition between opposing recesses 3 in the jaw or head3. The outer corner of the enlargement 1 is cut away or beveled asindicated at 1 to form an inclined bearing or engaging surface at theinner end of the gripping member 3 of the head 3.

4 represents the sliding jaw body, this jawbody being of a general yokeform, the body portion 4 of which is formed with opposing end openingswhich conform to the shape of and which receive slidably the bar 1.These end openings in the slidingjaw body 4 form end continuations of anintermediate slot or way 5 which is formed in the inner face of themember 4 between the forward and rear arms 4 and 4 of said I noted thatthe central portion of the forward endof the member i is formed with anextension in the nature of two parallel opposing lugs 4, the outeropposite corners of which are inclined or beveled to form angularengaging surfaces as shown at 45. These extension members" a are adaptedwhen the sliding body t is in its outermost position, to enter and fitwithin the sockets or recesses 3? of the head 3.

Between the projecting members 49 and d i of the sliding body 4, Iprovide a rotatable feed screw 6, the teeth of which are adapted, when ascrew fitting action is desired, to engage the teeth 1 of the rackmember of the bar 1. This rotatable screw feed member is rotatablymounted upon a pin or shaft indicated at 6, the outwardly extending endsof said pin or shaft being connected with thecorresponding end portionsof two opposing bearing plates 7, these bearing plates being pivotedeceentrically through the medium of pivot pins 7 to the outer portionsof the jaw arms 4 and i. ()n corresponding sides of the members 2 and iare secured the outer ends of oppo irlg flat spring plates 8, the freeinner ends or which eaten slightly beyond theinner faces of the members4 and a. it will be understood that the bearing of the outwardlyprojecting portions of these springplates 8 against correspondingportions of the plates 7 will serve to holdthe feed screw member 6 inoperative engagement with the teeth 1" of the wrench bar member 1, thusproviding for feeding the sliding jaw body 4 either toward or away fromthe fixed ja'w 3 by the rotation of the member 6. It will be noted thateach of the plates 7 is pravigled on its normally inner end with arounded recess cut to produce oppositely 'located inclined shoulders 7".which shoulders when the plates! are in position' to hold the feed screwin engagement with the teeth-of the bar, are in engagement withcorrespondingly shaped shoulders 7 which project from'the base portionsof the members. 4 and 4 In order. to disengage the feed member 6 fromthe teeth of the bar 1*, it is only necessary to exert a reasonabledegree of outward pressure upon the :feed member 6 and its bearingplates 7 to result in said feed member and its plates swinging outwardlyagainst pressure of the spring plates 8 until the threads of the member6 are out of engagement with the threads of the bar, thus permitting thesliding jaw member to be moved rapidly to a closed or open position uponthe bar. \Vhen in its open position the screw feed member 6 isfrictionally held against automatically returning to its engagement withthe teeth of the" bar, by the pressure of the springs 8 against opposingcorners of the plates 7 as shown more clearly in Fig. 4 of the drawing.

From the construction and operation described, it will readily beunderstood that whena gradual feed or return of the sliding jaw body isdesired, it is only necessary to bring the feed'member 6 into engagementwith the teeth of the wrench bar-in the manner described, whereupon themovable jaw may be made to travel in the desired direction the turningof said feed member.

vious that the feed screw member may be readily moved out of engagementwith the teeth of the wrench bar to perm1t the free sliding action ofthe movable jaw.

In Fig. 1 of the drawing, I have shown surfaces of the grip members 3,4, 1 and 41 in gripping contact with the faces of the hexagonal nut, thelatter being indicated 1n dotted lines. As indicated, a nut of thischaracter may thus have four of its sides engaged at one time, thusinsuring a desirable grip on the nut. It is obvlous, however, that theusual four-sided nut or a Slmllar body, may be engaged between the jawmembers 3 and 4 inthe usual manner. It will also be understood that awrench con structed as that herein shown and described, will be of greatstrength and utility.

What I claim, is

-A wrench comprising a rack bar, a fixed head .on said rack bar, acomplemental jaw body slidable on said rack bar, said jaw body having arecess therein, bearing plates PIV- otally mounted at one end onopposite sides of the recessed portion of said jaw body, a feed screwbetween said bearing plates and journaled in their free ends, and a fiatspring plate mounted on said jaw body ad acent said recess and adaptedto bear against the pivoted end of; one of said bearing plates toresiliently maintain saidieed screw in or out of engagement with saidrack bar.

In testimony whereof I affix my signature in presence of two witnesses.

sTEvE TAKAos. Witnesses:

ANDY. BROWN, J OHN TAYLOR.

Copies of this patent may be obtained for five cents each, by addressingthe fiommiss'loner of Patents, Washington, D. C.

